A very Limited Edition New Model called the Dirac (DER-ACK) from the Microtech Custom shop. This OTF knife features a Koi Fish theme engraved by the one and only Jody Muller of Muller Forge. The attention to detail is ridiculous. Anthony Marfione’s latest OTF knife creation features a thumb slide on the front of the handle instead of the usual Microtech Side slide. The Dirac model is essentially a UTX 85 frame but just a hair smaller and slimmer.